1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe7e523a9436fba362694848284f44fba9f87c92af5031af178c67a2af8f89c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bcad042-bfdb-463b-a913-11417d2cf861.json and https://artists.proofprofile.net/proofs/artist/3bcad042-bfdb-463b-a913-11417d2cf861.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38dea1d5761a5e5673af4caf8011e90968ddac5661694695c08560de44e4d8de. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K41802262.
Wake Up, Get Up, Get Out There / Colors Flying High - King Side (from "Persona 5") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf940f54625aaaacda6b3df635fc39bea62b767afe91793993a3ecf118de942. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42100145.
Beneath the Mask - King Side (from "Persona 5") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649e08612ab653c2a514ca424482184d55e565c9ab8d7c463f92563540f89306. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42100147.
Last Surprise - King Side (from "Persona 5") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d174e49b55e92be1b1b70c58cc81fe814240c8b6aa74ff3a4fada1f81b18f2. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42100148.
Life Will Change - King Side (from "Persona 5") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45ad099b8e3aeff348e7326afe8d1e98a52fbd7f89a31076eacddf45bcd2073. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42100149.
I Believe - King Side (from "Persona 5: The Royal") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3295765277596eea2a4fde9402ed67740067993f91509e4e6af6b6936058f40. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42100155.
No More What Ifs - King Side (from "Persona 5: The Royal") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c7b0659a1095bf1cb64ff9cbe3a6bab5da315cd26429c0bd33a286751aefca. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42100151.
Rivers in the Desert - King Side (from "Persona 5") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4cc1bfc5c34fcb48616708b5b4ee6db1a6cb4eeb3ecd06855938cd650f6fc4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42100153.
The Poem for Everyone's Souls - King Side (from "Persona 5") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a42c6c34946723ef5a62a81c6b571bbd9669ac188930887812e47661afccf5. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42100146.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
The Whims of Fate - King Side (from "Persona 5") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6e76b3b14f6e903c98368923da28d16d6f4afee72217742dc1b414d1e61e8b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42100150.
Take Over - King Side (from "Persona 5: The Royal") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2f597a4ee77e68c3e146a0fc02d96217337eb4b54c9e3e83f9fba03af94b17. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42100154.
Throw Away Your Mask - King Side (from "Persona 5: The Royal") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8626e8eecf07b45477941b91c71a1e0ec70f4b996bd31df34cc5ac0bd476f0. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K42100152.
Live and Learn (From "Sonic Adventure 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea560745dbf392cd7a1fc498adadf5bf8868fa2c189c9dfc8fd6bcaedfb60a9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32152881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613a0ab7d4c0e235321bb5f471cca9b442c0f9cf7912d487017d9cdedbc9d7cf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2019479.
Lifelight (from "Super Smash Bros. Ultimate")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eda7f34649cf0cee5c2ae95b2d5d3fa4e824089dede70181f4f3af2f1744306. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ6K41802448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2362d2cd9b34e12be53c526115561ff99b765175ee8fbe5d93652ef372d9c611. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZB4J1826158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6e7618a5365ce34d7cc193e4b45b736a60cfdee90048fe116fd4ddcce2390d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZARB1839056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe233769c82fbdf4f645c143a5d1b391fc6a60b149c0d243893bbea23d94964. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8LD1797168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446d0659f83419c77e57997606e9bd04f6083bcf43dc45d13405a70f2e5f1039. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4DW1788723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64323776f53c1ad91ab79428a0bea2da68fb3d840b8c8de6b60ad3ffd46aef88. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UST8K1690015.